I’ve been using PHP 7.0 for just over a year, and the 7.1 branch reached its first stable release last month, so I’ve begun thinking about what the switch will entail. Fortunately, my needs are fairly simple, so I only require two additional modules: Redis and GeoIP. I’ve made one hasty attempt to build 7.1 with support for these features, which failed spectacularly; fortunately, the chance that it was an error on my part is quite good, so things may just work when I try it again.
Sadly, I’m not yet able to drop PHP 5.6 support from my VPS as a few necessary applications still don’t work as expected under newer releases.